diff options
Diffstat (limited to 'src/include/access/xlog.h')
| -rw-r--r-- | src/include/access/xlog.h | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/src/include/access/xlog.h b/src/include/access/xlog.h index 4812997659f..6936a2a5791 100644 --- a/src/include/access/xlog.h +++ b/src/include/access/xlog.h @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/access/xlog.h,v 1.109 2010/04/20 11:15:06 rhaas Exp $ + * $PostgreSQL: pgsql/src/include/access/xlog.h,v 1.110 2010/04/28 16:10:43 heikki Exp $ */ #ifndef XLOG_H #define XLOG_H @@ -195,24 +195,26 @@ extern int XLogArchiveTimeout; extern bool log_checkpoints; extern bool XLogRequestRecoveryConnections; extern int MaxStandbyDelay; +/* WAL levels */ +typedef enum WalLevel +{ + WAL_LEVEL_MINIMAL = 0, + WAL_LEVEL_ARCHIVE, + WAL_LEVEL_HOT_STANDBY +} WalLevel; +extern int wal_level; -#define XLogArchivingActive() (XLogArchiveMode) +#define XLogArchivingActive() (XLogArchiveMode && wal_level >= WAL_LEVEL_ARCHIVE) #define XLogArchiveCommandSet() (XLogArchiveCommand[0] != '\0') /* - * This is in walsender.c, but declared here so that we don't need to include - * walsender.h in all files that check XLogIsNeeded() - */ -extern int max_wal_senders; - -/* - * Is WAL-logging necessary? We need to log an XLOG record iff either - * WAL archiving is enabled or XLOG streaming is allowed. + * Is WAL-logging necessary for archival or log-shipping, or can we skip + * WAL-logging if we fsync() the data before committing instead? */ -#define XLogIsNeeded() (XLogArchivingActive() || (max_wal_senders > 0)) +#define XLogIsNeeded() (wal_level >= WAL_LEVEL_ARCHIVE) /* Do we need to WAL-log information required only for Hot Standby? */ -#define XLogStandbyInfoActive() (XLogRequestRecoveryConnections && XLogIsNeeded()) +#define XLogStandbyInfoActive() (wal_level >= WAL_LEVEL_HOT_STANDBY) #ifdef WAL_DEBUG extern bool XLOG_DEBUG; @@ -293,7 +295,6 @@ extern void InitXLOGAccess(void); extern void CreateCheckPoint(int flags); extern bool CreateRestartPoint(int flags); extern void XLogPutNextOid(Oid nextOid); -extern void XLogReportUnloggedStatement(char *reason); extern XLogRecPtr GetRedoRecPtr(void); extern XLogRecPtr GetInsertRecPtr(void); extern XLogRecPtr GetWriteRecPtr(void); |